06 Dec, 2009
2 commits
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…git/tip/linux-2.6-tip
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (470 commits)
x86: Fix comments of register/stack access functions
perf tools: Replace %m with %a in sscanf
hw-breakpoints: Keep track of user disabled breakpoints
tracing/syscalls: Make syscall events print callbacks static
tracing: Add DEFINE_EVENT(), DEFINE_SINGLE_EVENT() support to docbook
perf: Don't free perf_mmap_data until work has been done
perf_event: Fix compile error
perf tools: Fix _GNU_SOURCE macro related strndup() build error
trace_syscalls: Remove unused syscall_name_to_nr()
trace_syscalls: Simplify syscall profile
trace_syscalls: Remove duplicate init_enter_##sname()
trace_syscalls: Add syscall_nr field to struct syscall_metadata
trace_syscalls: Remove enter_id exit_id
trace_syscalls: Set event_enter_##sname->data to its metadata
trace_syscalls: Remove unused event_syscall_enter and event_syscall_exit
perf_event: Initialize data.period in perf_swevent_hrtimer()
perf probe: Simplify event naming
perf probe: Add --list option for listing current probe events
perf probe: Add argv_split() from lib/argv_split.c
perf probe: Move probe event utility functions to probe-event.c
... -
…/git/tip/linux-2.6-tip
* 'core-iommu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (63 commits)
x86, Calgary IOMMU quirk: Find nearest matching Calgary while walking up the PCI tree
x86/amd-iommu: Remove amd_iommu_pd_table
x86/amd-iommu: Move reset_iommu_command_buffer out of locked code
x86/amd-iommu: Cleanup DTE flushing code
x86/amd-iommu: Introduce iommu_flush_device() function
x86/amd-iommu: Cleanup attach/detach_device code
x86/amd-iommu: Keep devices per domain in a list
x86/amd-iommu: Add device bind reference counting
x86/amd-iommu: Use dev->arch->iommu to store iommu related information
x86/amd-iommu: Remove support for domain sharing
x86/amd-iommu: Rearrange dma_ops related functions
x86/amd-iommu: Move some pte allocation functions in the right section
x86/amd-iommu: Remove iommu parameter from dma_ops_domain_alloc
x86/amd-iommu: Use get_device_id and check_device where appropriate
x86/amd-iommu: Move find_protection_domain to helper functions
x86/amd-iommu: Simplify get_device_resources()
x86/amd-iommu: Let domain_for_device handle aliases
x86/amd-iommu: Remove iommu specific handling from dma_ops path
x86/amd-iommu: Remove iommu parameter from __(un)map_single
x86/amd-iommu: Make alloc_new_range aware of multiple IOMMUs
...
01 Dec, 2009
1 commit
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Code was added to mm/higmem.c that depends on several
kmap types that powerpc does not support. We add dummy
invalid definitions for KM_NMI, KM_NM_PTE, and KM_IRQ_PTE.According to list discussion, this fix should not be needed
anymore starting with 2.6.33. The code is commented to this
effect so hopefully we will remember to remove this.Signed-off-by: Becky Bruce
Signed-off-by: Benjamin Herrenschmidt
18 Nov, 2009
1 commit
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…ux/kernel/git/josh/linux-misc
* 'hostprogs-wmissing-prototypes' of git://git.kernel.org/pub/scm/linux/kernel/git/josh/linux-misc:
Makefile: Add -Wmising-prototypes to HOSTCFLAGS
oss: Mark loadhex static in hex2hex.c
dtc: Mark various internal functions static
dtc: Set "noinput" in the lexer to avoid an unused function
drm: radeon: Mark several functions static in mkregtable
arch/sparc/boot/*.c: Mark various internal functions static
arch/powerpc/boot/addRamDisk.c: Mark several internal functions static
arch/alpha/boot/tools/objstrip.c: Mark "usage" static
Documentation/vm/page-types.c: Declare checked_open static
genksyms: Mark is_reserved_word static
kconfig: Mark various internal functions static
kconfig: Make zconf.y work with current bison
17 Nov, 2009
1 commit
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Merge reason: Add fixes we'll depend on.
Signed-off-by: Ingo Molnar
16 Nov, 2009
1 commit
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Nothing outside of arch/powerpc/boot/addRamDisk.c references the
functions "get4k", "put4k", or "death".Signed-off-by: Josh Triplett
15 Nov, 2009
1 commit
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Merge reason: Both 'perf bench' and the pending PowerPC changes
are now ready for the next merge window.Signed-off-by: Ingo Molnar
11 Nov, 2009
1 commit
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pasemi_defconfig hasn't been updated for a year.
Mostly a refresh of defaults, but this also disables 64K pages.
Signed-off-by: Olof Johansson
Signed-off-by: Benjamin Herrenschmidt
10 Nov, 2009
1 commit
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This enables us to avoid printing swiotlb memory info when we
initialize swiotlb. After swiotlb initialization, we could find
that we don't need swiotlb.This patch removes the code to print swiotlb memory info in
swiotlb_init() and exports the function to do that.Signed-off-by: FUJITA Tomonori
Cc: chrisw@sous-sol.org
Cc: dwmw2@infradead.org
Cc: joerg.roedel@amd.com
Cc: muli@il.ibm.com
Cc: tony.luck@intel.com
Cc: benh@kernel.crashing.org
LKML-Reference:
[ -v2: merge up conflict ]
Signed-off-by: Ingo Molnar
05 Nov, 2009
10 commits
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Updated mpc85xx_{smp_}defconfig to enable:
* XES_MPC85xx board
* PCI MSI
* RapidIOSigned-off-by: Kumar Gala
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Signed-off-by: Kim Phillips
Signed-off-by: Kumar Gala -
u-boot partition size should be 0x80000 (512 KB), not 0x8000 (32 KB).
Signed-off-by: Anton Vorontsov
Signed-off-by: Kumar Gala -
This patch fixes USB GPIOs numbers for MPC8569E-MDS boards, plus
according to the latest HW Getting Started Guide (rev 3.3, pilot
boards), USB "POWER" GPIO polarity has changed, it is no longer
inverted.This patch makes USB Host somewhat work on pilot boards, though
there are still some problems with determining devices speed and
long bulk transfers.Reported-by: Liu Yu
Signed-off-by: Anton Vorontsov
Signed-off-by: Kumar Gala -
Prevent NULL dereference if kmalloc() fails. Also clean up if
of_mdiobus_register() returns an error.Signed-off-by: Roel Kluin
Acked-by: Scott Wood
Signed-off-by: Kumar Gala -
The PCI-e addressing was originally patterned of the MPC8548CDS
which has PCI1, PCI2, and PCI-e. Since this board only has
PCI1 and PCI-e, it makes more sense to be similar to the MPC8568MDS
board. This does that by cutting the PCI/PCI-e I/O sizes from
16MB to 8MB and pulling the PCI-e I/O range back to 0xe280_0000
(the hole where PCI2 I/O would have been).This also fixes a typo where an extra zero made an 8MB range a 128MB
range, removes the hole left by PCI2 from the aliases, and sets the
clocks to match the oscillators that are actually on the board.With accompanying u-boot updates, PCI-e has been validated with
both a sky2 card (1148:9e00) and an e1000 card (8086:108b).Signed-off-by: Paul Gortmaker
Signed-off-by: Kumar Gala -
Signed-off-by: Benjamin Herrenschmidt
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Patch f598282f5145036312d90875d0ed5c14b49fd8a7 exposed a problem in
powerpc MSI-X functionality, making network interfaces such as ixgbe
and cxgb3 stop to work when MSI-X is enabled. RX interrupts were not
being generated.The problem was caused because MSI irq was not being effectively
unmasked after device initialization.Signed-off-by: Andre Detsch
Signed-off-by: Michael Ellerman
Signed-off-by: Benjamin Herrenschmidt -
Doing so causes xtime to be negative which crashes the timekeeping
code in funny ways when doing suspend/resumeSigned-off-by: Benjamin Herrenschmidt
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I inadvertently left that debug code enabled, causing the number of
contexts to be clamped to 31 which is going to slow things down on
4xx and just plain breaks 8xxSigned-off-by: Benjamin Herrenschmidt
30 Oct, 2009
1 commit
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Signed-off-by: Benjamin Herrenschmidt
28 Oct, 2009
14 commits
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Add some dummy symbols for the branches at 0xf00, 0xf20 and 0xf40,
otherwise hits end up in trap_0e which is confusing to the user.Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
If CONFIG_PPC_ISERIES isn't defined we end up with
iseries_check_pending_irqs and do_work at the same address.
perf ends up picking iseries_check_pending_irqs which creates
confusing backtraces. Hide it.Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
A lot of hits in "setup" doesn't make much sense, so hide this symbol and
allow all the hits to end up in copy_4k_page.Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
Kernel modules should be able to place their debug output inside our
powerpc debugfs directory.Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
The overhead of HCALL_STATS is quite high and the functionality is very
rarely used. Key statistics are also missing (eg min/max).With the new hcall tracepoints much more powerful tracing can be done in
a kernel module. Lets disable this by default.Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
While most users of the hcall tracepoints will only want the opcode
and return code, some will want all the arguments. To avoid the
complexity of using varargs we pass a pointer to the register save
area, which contains all the arguments.Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
Add hcall_entry and hcall_exit tracepoints. This replaces the inline
assembly HCALL_STATS code and converts it to use the new tracepoints.To keep the disabled case as quick as possible, we embed a status word
in the TOC so we can get at it with a single load. By doing so we
keep the overhead at a minimum. Time taken for a null hcall:No tracepoint code: 135.79 cycles
Disabled tracepoints: 137.95 cyclesFor reference, before this patch enabling HCALL_STATS resulted in a null
hcall of 201.44 cycles!Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
We can monitor the effectiveness of our power management of both the
kernel and hypervisor by probing the timer interrupt. For example, on
this box we see 10.37s timer interrupts on an idle core:-0 [010] 3900.671297: timer_interrupt_entry: pt_regs=c0000000ce1e7b10
-0 [010] 3900.671302: timer_interrupt_exit: pt_regs=c0000000ce1e7b10-0 [010] 3911.042963: timer_interrupt_entry: pt_regs=c0000000ce1e7b10
-0 [010] 3911.042968: timer_interrupt_exit: pt_regs=c0000000ce1e7b10-0 [010] 3921.414630: timer_interrupt_entry: pt_regs=c0000000ce1e7b10
-0 [010] 3921.414635: timer_interrupt_exit: pt_regs=c0000000ce1e7b10Since we have a 207MHz decrementer it will go negative and fire every 10.37s
even if Linux is completely idle.Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
This adds powerpc-specific tracepoints for interrupt entry and exit.
While we already have generic irq_handler_entry and irq_handler_exit
tracepoints there are cases on our virtualised powerpc machines where an
interrupt is presented to the OS, but subsequently handled by the hypervisor.
This means no OS interrupt handler is invoked.Here is an example on a POWER6 machine with the patch below applied:
-0 [006] 3243.949840744: irq_entry: pt_regs=c0000000ce31fb10
-0 [006] 3243.949850520: irq_exit: pt_regs=c0000000ce31fb10-0 [007] 3243.950218208: irq_entry: pt_regs=c0000000ce323b10
-0 [007] 3243.950224080: irq_exit: pt_regs=c0000000ce323b10-0 [000] 3244.021879320: irq_entry: pt_regs=c000000000a63aa0
-0 [000] 3244.021883616: irq_handler_entry: irq=87 handler=eth0
-0 [000] 3244.021887328: irq_handler_exit: irq=87 return=handled
-0 [000] 3244.021897408: irq_exit: pt_regs=c000000000a63aa0Here we see two phantom interrupts (no handler was invoked), followed
by a real interrupt for eth0. Without the tracepoints in this patch we
would have missed the phantom interrupts.Signed-off-by: Anton Blanchard
Acked-by: Steven Rostedt
Signed-off-by: Paul Mackerras -
Hook up the alignment-faults and emulation-faults events for powerpc.
Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
perf_event wants a separate event for alignment and emulation faults,
so create another emulation event. This will make it easy to hook in
perf_event at one spot.We pass in regs which will be required for these events.
Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
In continuous sampling mode we want the SDAR to update. While we can
select between dcache misses and ERAT (L1-TLB) misses, a decent default
is to enable both.Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras -
When we take an exception and the SDAR isn't synchronised we currently
log 0 as the address. Unfortunately this is a pretty common value, so
use ~0UL instead.Signed-off-by: Anton Blanchard
Signed-off-by: Paul Mackerras
27 Oct, 2009
6 commits
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Based on an original patch by Valentine Barshak
Use preempt_schedule_irq to prevent infinite irq-entry and
eventual stack overflow problems with fast-paced IRQ sources.This kind of problems has been observed on the PASemi Electra IDE
controller. We have to make sure we are soft-disabled before calling
preempt_schedule_irq and hard disable interrupts after that
to avoid unrecoverable exceptions.This patch also moves the "clrrdi r9,r1,THREAD_SHIFT" out of
the #ifdef CONFIG_PPC_BOOK3E scope, since r9 is clobbered
and has to be restored in both cases.Signed-off-by: Benjamin Herrenschmidt
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Fix the following 3 issues:
arch/powerpc/kernel/process.c: In function 'arch_randomize_brk':
arch/powerpc/kernel/process.c:1183: error: 'mmu_highuser_ssize' undeclared (first use in this function)
arch/powerpc/kernel/process.c:1183: error: (Each undeclared identifier is reported only once
arch/powerpc/kernel/process.c:1183: error: for each function it appears in.)
arch/powerpc/kernel/process.c:1183: error: 'MMU_SEGSIZE_1T' undeclared (first use in this function)In file included from arch/powerpc/kernel/setup_64.c:60:
arch/powerpc/include/asm/mmu-hash64.h:132: error: redefinition of 'struct mmu_psize_def'
arch/powerpc/include/asm/mmu-hash64.h:159: error: expected identifier or '(' before numeric constant
arch/powerpc/include/asm/mmu-hash64.h:396: error: conflicting types for 'mm_context_t'
arch/powerpc/include/asm/mmu-book3e.h:184: error: previous declaration of 'mm_context_t' was herecc1: warnings being treated as errors
arch/powerpc/kernel/pci_64.c: In function 'pcibios_unmap_io_space':
arch/powerpc/kernel/pci_64.c:100: error: unused variable 'res'Signed-off-by: Kumar Gala
Signed-off-by: Benjamin Herrenschmidt -
This defconfig's purpose at this time is to help catch compile errors
between Book-3S and Book-3E support in ppc64. It is based on the
ppc64_defconfig with some things disabled that we dont support on
Book-3E right now (hugetlbfs, slices, etc.)Signed-off-by: Kumar Gala
Signed-off-by: Benjamin Herrenschmidt -
Prior to the arch/ppc -> arch/powerpc transition, xmon had support for single
stepping on 4xx boards. The functionality was lost when arch/ppc was removed.
This patch restores single step support for 44x boards, and Book-E in general.Signed-off-by: Josh Boyer
Signed-off-by: Benjamin Herrenschmidt -
The ABI specifies a 64K alignment, we need to map the vDSO accordingly
Signed-off-by: Andreas Schwab
Signed-off-by: Benjamin Herrenschmidt -
Due to missing segment assignments the .text section was put in the NOTES
segment (and marked as NOTE section), and the .got was put in the DYNAMIC
segment.Signed-off-by: Andreas Schwab
Signed-off-by: Benjamin Herrenschmidt
